[2-(4-chlorobutyl)-[1,3]dioxolan-2-yl]acetic acid methyl ester

(2S)-[1-((S)-2-hydroxy-1-phenylethyl)piperidin-2-yl]acetic acid methyl ester

{2-[4-((S)-2-hydroxy-1-phenylethylamino)butyl]-[1,3]dioxolan-2-yl}acetic acid methyl ester

二碳酸二叔丁酯

methyl 2-[(2S)-piperidin-2-yl]acetate